Striking mechanism for eight



(ModeL) 4 Sheets-Sheet 1.

E. A MULLER. STRIK-ING MECHANISM FOR EIGHT DAY CLOCKS. No. 293,589. I Patented Feb. 12, 1884.

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' INVENTOR 2 ATTORNEYS.

4 Sheets-Sheet 2.

(Mode1.)

A MULLER. STRIKING MECHANISM FOR EIGHT DAY CLOCKS. No. 293.589.

Patented Feb. 12,1884.

INVENTOR WITNESSES ATTORNEYS.

(MbdeL) 4 SheetsSheet 3.

E. A MULLER. STRIKING MECHANISM FOR EIGHT DAY GLGGKS.

No. 293.589. Patented Feb. 12, 1884.-

ATTORNEYS.

N. PETERS. Pine vblhogmphen Washmgiun. u. C.

(ModeL) 4 Sheets-Sheet 4.

E. A MULLER. S'TRIKING MECHANISM FOR EIGHT DAY CLOCKS. N0. 293,589. Patented Feb. 12,1884.

WITNESSES: INVENTOR:

- I BY ATTORNEYS.

N. PETERS. Plwmulhn m lm. \VASlunglnn. D C,

llnrrnn STATES EDW'ARD ADOLF MFILLER, OF LOUISVILLE, K FTUOKY.

STRlKlNG MECHANESM FOR EiGi-lT CLQCK5.

SPECIFICATION forming part of Letters Patent No. 293,589, dated February 12, 1884.

Application filed May 18, 1883. (hlodeh) To all whom. it may concern.-

Be it known that I, EDWARD ADoLn MUL- LER, of Louisville, in the county of Jefferson and State of Kentucky, have invented a new and Improved Eight-Day Clock, of which the following is a full, clear, and exact description.

The object of my invention is to provide a new and improved eight day clock which strikes the quarter, half, and three-quarter hours on a gong and the full hours on a spiral spring, thus producing a different sound in striking the hours and parts of hours. The clock is also provided with a secondhand and with an alarm.

The invention consists in the combination, with the clock, of an alarm adapted to sound the bell for striking the quarter-hours.

The invention also consists in the details of construction of the alarm mechanism and in other parts and details, and various combinations of the same, as will be fully described and set forth hereinafter.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a front view of the works of my improved clock. Fig. 2 is a longitudinal elevation of the same, showing the front plate removed. Fig. 3 is a rear view of the same. Fig. 4 is an end view of the same. Fig. 5 is a detail view of the escapement of thealarm. Figs. 6 and 7 are detail views of the striking mechanism.

The pendulum is suspended from a swinging arm, A, carrying. an anchor, A, on the rear side of the clock-work, which anchor engages with the escapementwheel B, mounted on an arbor, a, on the outer end of which the second-hand D is mounted. The escapementwheel is provided with sixty teeth, each of which is stopped twice by the escapement, so that the second-hand D will make one hundred and twenty movements in one revolution,

and thus will indicate halfseconds, as it makes one revolution every minute. A small tube, a is fastened on the front plate, on which tube the sleeve 0 is mounted loosely, and in which sleeve the arbor a runs which is to receive the second-hand. The wheel 0, which has sixty teeth, is pressed on the sleeve G by the small spring a. The wheel 0 is moved by a small pinion, J", fastened on the pivot of the wheel H of the train of wheels for operating the hands, which pivot projects from the front plate. hen the wheel 0 turns, it moves the sleeve 0 with it. In setting the hands, the sleeve 0 only is moved, as the wheel 0 is held by the small pinion J.

On the end of the sleeve G the minutehand D is mounted, which makes one revolution per hour.

011 the sleeve 0 a sleeve, 0, is mounted, 011 the end of which sleeve 0 an hour-hand, D is mounted, which makes one-twelfth of a revolution every hour.

On the sleeve 0 of the minute-hand D a pinion, (l, is mounted, which engages with a wheel, (1, made integral with a pinion, d", which engages with a wheel, (2, on the sleeve G, whereby the sleeve 6 will be operated from the sleeve 0 of the minute-hand. lVith the pinion d a cog-wheel, c, engages, against the sleeve of which the alarm-releasing lever E rests.

On the sleeve 0 of the minute-hand a disk, F, is rigidly mounted, which is provided with four prongs or studs, f, arranged equidistant and projecting from the rear surface of the disk, and on its front surface the disk F is provided with a cam-projection, F. A lever, G, pivoted to the plate,has one end projecting behind the disk F, so that the free end of the said lever can rest on the studs f, projecting from the rear surface of the disk, and on the said lever G an upwardly-projecting arm, G is fastened, which is adapted to raise the lock ing-hook J, holding the wheel H, acting 011 the flier H, which wheel H is actuated by means of a train of gearing from the spring J, for operating the striking mechanism. As the disk F makes one revolution .in each hour and is provided with four equidistant studs, f, it is evident that the free end of the lever G will be raised four times at regular intervals of a quarter of an hour each in each hour, and the locking-hook J will be raised every quarter of an hour, thus permitting the wheel H to make one revolution. The wheel H is provided with a pinion,which acts on a wheel, H mounted on the same shaft, with a wheel, H provided on its rear side with three studs, 1, projecting from the rear 2 eoaace surface, and with three notches, h, in its edge. An arm, I, of arocking shafhl, rests against the-studs h of thewheel H and from the said shaft I a curved arm, 1, projects downward. The outer end of the rocking shaft 1 passes into a fork, 70, on the lower endof a lever, K, pivoted on the front plate ofthe clock-work frame. The said shaft I is adapted to slide transversely in the clockwork frame. A spring, K secured on the front plate of the clock-frame, rests 011 the lower end of the lever K and presses the same outward, and thus draws the shaft 1 and arm I outwardthat is, toward the front of the frame of the clock. The lever K is provided at its'end with an anti-friction roller,

is, which rests against the camprojection F of r the disk F. Below and a short distance to one side of the shaft 1 a shaft, 13,. projects from the back plate of the frame, and on the same two hammer-arms, M and N, are pivoted, one in front of the other, which hammer-arms are provided at their upper" ends with curved tongues- M and N, projecting upward and pressed by springs m and it against a rod, 0, projecting toward the front from the back plate of the works ashort distance above the shaft L. Balls or hammerheads M and N are secured to the ends of the hammer-arms M and N, respectively. The hammer-arm M isback plate of the works on a shaft, R, and

engages with a cog-wheel, S, having one hundred and fifty teethandjournaled von the back plate of the works.

On the shaft R a pinion, B is mounted, which engages with a wheehr, operated by the spring J. The arm J, which looks the wheel H by means of a stud, s, projecting from the said wheel, is mounted onarocking sleeve, T, mounted on a pintle, T, projecting from the rear plate of the works. The sleeve T is provided with an arm, U,Iwhiehrests on the edge of the notched wheel H, and with another arm, V, which is provided at its end with a tooth, V, adapted to pass into notches Z in the edge of the wheelS. If the arm J is raised by the projection G on the arm G,-the arms U and V, mounted on the same sleeveT with the arm J, will also be raised, and the bent end V of the arm J will be withdrawn from thevnotches Z. The notches Z' in the wheel S are arranged in the usual manner as in clocks for striking quarter, half, and threequarter hours. The free end of the alarm-- releasing lever E is pressed against the front plate of the works by a spring, E. The alarm-hammer VF, which is adapted to strike on the gong Q, is attached to a rocking shaft, XV, provided with an anchor, VV the shanks of which surround ashaft, 20, provided with a laterally-projecting arm,- w, adapted to'act on the anchor W and to vibrate the hammer WV, whereby the gongQ will be sounded.

The shaft 20 is provided with an arm, Y, which is adapted to rest against the free end of the alarm-releasing lever E. On the shaft 10 a pinion, 10 is mounted, which engages with a cog-wheel, Y, which can be operated from a spring, X. The wheel e revolves loosely on its shaft once in twelve hours.

The operation is as follows: The disk F is revolved once in every hour, and as it is pro vided with four equidistant studs, f, it raises the lever G once every quarter-hour. If the lever G is raised, its arm G raises the arm J,

against the end of which arm the stud s of the wheel H rests, thus preventing the said wheel H from being revolved in the direction of the arrow Vhen the arm J is raised by the arm G, the said wheel H is permitted to make one revolution in the direction of the arrow a, whereby the wheel H will be re volved in the direction of the arrow 1), and as the wheel H is mounted rigidly on the same shaft with the wheel H, the wheel H will also be revolved in the direction of the arrow 1), and one of its studs, h,will press the arm I in the direction of the arrow 0. The lower end of the arm I will press the upper end of the tongue N of the hammer N in the direction of the arrow (1, whereby the spring aof the. said hammer N is stretched. After the arm I has moved a sufficient distance to release the tongue N, the spring it throws the hammer-head N against the gong Q, whichis thus sounded. The disk F raises the arm J every quarter of an hour, and releases the wheel H as stated, on which wheel H the lever U rests, and the lever U will be raised, and also can raise the arm V, which releases the wheel S sufficiently to draw it out of one of the recesses I, so that it will rest on the small teeth between the recesses. V is in. this position, as shown, it will hold the arm J raised to such an elevation that the stud s on the wheel H can clear it, and the arm V remains raised as long as its bent end V is in the small notches of the wheel S. As many notches as there are between the re cesses Zso many strokes the hammer N will. makethat is, for instance, the arm V is raised a quarter of an hour before the full hour, the arm V will be raised three times and the hammer N will make three strokes. three strokes have been made, the end of the arm V will come to a notch, Z, into which it will pass, whereby the arm J will be moved downward sufficiently to permit its end to arrest the disk or wheel S, and so on. This is repeated every quarter of an hour.. At the first quarter the arm J is held raised by the.

If the arm After the by the arm V for a suificient length of time to permit the hammer \*to make three strokes. At the full hour the arm J is held raised-by the arm V for a sufficient length of time to make as many strokes as the hour may require, this being governed by the number of teeth or small notches between the recesses Z in the edge of the wheel S. As the wheel F makes one revolution every hour, its cam portion F will press the upper end of the lever K outward once every hour, and will press the rocking shaft 1 inward-that is, in the direc tion of the arrow eso that the arm 1' will not be over the tongue N of the hammer X, but will be over the tongue M of the hammer M. If, then, the pintles or studs h on the wheel H act on the arm I, the arm 1 will not press the upper end of the tongue N in the direction of the arrow (1, but will press the upper end of the tongue M in the direction of the arrow (7, thereby stretching the spring in and releasing the tongue M, and causing the hammer-head M to strike against the spiral spring P. As the disk F continues to rotate, the cam portion 1*" will leave the upper end of the lever K, and the spring K will press the upper end of the lever K against the fiat part of the disk F again, and will draw the shaft Iin the inverse direction of the arrow 6, so that the arm I will rest on the tongue N again. The full hours are thus struck on the spiral. spring P, and the quarter, half, and three-quarters are sounded on the gong Q, on which the alarm is also sounded. The sound produced at the quarter, half, and three-quarters is entirely different from the sound produced at the full hour, and if a person hears the sound of the gong Q lie-will know the clock strikes quarters or an alarm; but if he hears the spring 1 sounded he will know that the clock strikes for a full hour.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent 1. The combination, with the secondhand arbor a, of the loose sleeve 0, the spring 6,

the sixty-toothed wheel 0, and the wheel H,

carrying pinion J on its pivot, said wheel being a part of the hand-operating mechanism, as shown and described.

2. The combination, with the sleeve 0, of the disk F, having equidistant studs f and eamprojection F, the lever G, having one end behind said disk and an upwardly-projecting arm, G, the wheel H, flier H, and spring J, the latter being a part of the striking mechanism and connected with said wheel, as and for the purpose set forth.

3. In a clock, the combination, with the hour-bell P, the quarter-hour bell Q, and the hammers II N, of the adjustable shaft 1, pro vided with an arm, 1 adapted to act on the upper ends of the hammers, and with an arm. 1, adapted to be acted upon by the striking mechanism, substantially as herein shown and described, and for the purpose set forth.

4. In a clock, the combination, with the bells P Q, of the hammers M X, provided with the tongues Ill X, the springs in n, and the adj ustable shaft 1, provided with the arm 1 adapted to act on the tongues )l N, and with the arm 1, adapted to be acted upon by the striking mechanism, substantially as herein shown and described, and for the purpose set forth.

5. In a clock, the combination, with the disk F, mounted on the sleeve 0 of the hour-hand, of the studs f, the cam-ridge F, the lever K, the spring 1?, the sliding shalt I, the arms I and l", the hammers M N, and the bells P Q, substantially as herein shown and described, and for the purpose set forth.

6. In a clock, the combination, with the alarm-hammer XV, of the anchor the shalt u, the tooth u", the pinion it, cog-whecls for revolving the pinion, the arm Y, and the alarmrcleasing lever E, substantially as herein shown and described, and for the purpose set forth.

ED\VARD ADOLF MULLER.

lVitnesscs:

Tirno. AHRnXs, Jr, HENRY XYoLr. 

